Update Amazing_PSS_Seminar.md

Amazing_PSS_Seminar.md

@@ -9,6 +9,6 @@
 | Date | Speaker | Title | 
 | ----------- | ----------- |----------- |
 | 11-10-2022 |  Adrien Broquet ( Lunar and Planetary Laboratory/UoA, USA) | Geophysical evidence for an active mantle plume underneath Elysium Planitia, Mars  | 
-| 19-04-2022 |  Alice Jacob (PSS/IPGP) | Preparation soutenance de these | 
+| 25-10-2022 | XX  | Title| 
 | XX-03-2022 |  XX | Title | 
 | XX-09-2022 |  XX | Title |